Title: Influence of water in the reaction of gamma-aminopropyltriethoxysilane with silica-gel - a fourier-transform infrared and cross-polarization magic-angle-spinning nuclear-magnetic-resonance study
Authors: Vrancken, Kc ×
Vandervoort, P
Gillisdhamers, I
Vansant, Ef
Grobet, Pierre #
Issue Date: 1992
Publisher: Royal soc chemistry
Series Title: Journal of the chemical society-faraday transactions vol:88 issue:21 pages:3197-3200
Abstract: Silica gel has been modified with gamma-aminopropyltriethoxysilane under varying conditions, controlling the influence of water in the different modification stages, Diffuse reflectance infrared Fourier-transform (DRIFT) spectra revealed the influence of surface water in the reaction stage and of air humidity in the curing stage. These results were confirmed and refined by Si-29 and C-13 cross-polarisation magic-angle-spinning nuclear magnetic resonance (CPMASNMR) spectroscopy. Combining the results of both techniques, four modification structures present on the silica surface are proposed, depending on the conditions used.
ISSN: 0956-5000
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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